How this fasting blood sugar conversion is calculated
General formula: mmol/L × 18 = mg/dL
- 1. Start with the value in mmol/L: 1.
- 2. Multiply by the analyte-specific factor: 1 × 18.
- 3. Result in mg/dL: ≈ 18.
mmol/L to mg/dL calculator for Fasting Blood Sugar (FBS)
Use this page to convert fasting blood sugar (fbs) between mmol/L and mg/dL with the correct factor for this test.
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Conversion settings
Standard conversion for this test between mmol/L and mg/dL.
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Conversion factor: 1 mmol/L ≈ 18 mg/dL
Tips and important notes for fasting blood sugar
- Fasting blood sugar is measured after an overnight fast with only water allowed.
- One single fasting value is only a snapshot; trends over time matter more.
- Always interpret fasting results with your own doctor, especially if you are on treatment.